Tactical techniques for conducting battles in Heroes of Might and Magic II.

besides, the AI does another silly thing: it blinds, say, Ogres, then removes the blindness with a dispel magic spell... then blinds them again...

Yes, yes! It's just fantastic! The AI considers dispel magic a curse, and probably a strong and very high-priority one, and casts it whenever it can! It's so funny to watch it fight with itself:D :D